25 lines
616 B
Python
25 lines
616 B
Python
#!/bin/env python3
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# *-* utf-8 *-*
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import numpy as np
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import matplotlib.pyplot as plt
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import cv2
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import time
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# Code principal.
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cap = cv2.VideoCapture(0)
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ret, frame = cap.read()
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[xl, yl, cl] = np.shape(frame)
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red = np.ones([xl, yl, cl])
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green = np.ones([xl, yl, cl])
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blue = np.ones([xl, yl, cl])
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while(True):
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ret, frame = cap.read()
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gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
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hist = cv2.calcHist([gray],[0],None,[256],[0,256])
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plt.plot(np.linspace(0,255,256),hist.T[0])
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plt.imshow('video', hist)
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if (cv2.waitKey(1) & 0xFF == ord('q')) :
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break
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time.sleep(1)
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cap.release()
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cv2.destroyAllWindows()
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